Rheem 500 Series Support Question
Rheem 500 Series Support Question
Find answers below for this question about Rheem 500 Series.Need a Rheem 500 Series manual? We have 1 online manual for this item!
Question posted by jackschell on November 13th, 2014
What Does Mrlc Open On Thermostat For Heater
Code at furn is 33 in RED What does this mean
Current Answers
Related Rheem 500 Series Manual Pages
Installation Guide - Page 1
Dealer Installation and Start-Up Instructions
500 Series Thermostat Featuring Serial Communication
(-)HC-TST501CMMS
Manual 37-6943A 0830
Installation Guide - Page 2
...condensing unit or heat pump and touchscreen thermostat that contains mercury.
WARNING
To prevent electrical shock and/or equipment damage, disconnect electric power to Thermostat and Communicating System
The system consists of... to send the product containing mercury. Display code 81 82 83 84 93 P d1 d3 d4 d5 d6 d7 d8
System Fault Codes (Cont.)
Diagnostic Description Return air sensor out...
Installation Guide - Page 3
... Information 19
Equipment User Menus 20 Thermostat User Menus 23 Furnace User Menus 24 Air Handler User Menus 27 Heat Pump User Menus 29 Air Conditioner User Menus 32 Auxiliary limit switch open Line Neutral Reversed Check Line Voltage High Line Voltage High Pressure Switch Trip Fuse Open MRLC Open Low pressure switch closed, inducer...
Installation Guide - Page 4
... (not available if control is designed exclusively for armchair programming. This thermostat is replaced)
XXXXXX
Control Software Version
Cool Setup Parameters
AC Profi...Installer Configuration Menu
Air Conditioner User Menus (Cont.)
Fault History (FAULT HIST)
Fault Code
Fault Occurred
XXXXXXXXXXXXXXX Days XX
Clear Faults
No, Yes
Comments
Displays up to the Factory Default ...
Installation Guide - Page 5
... Pressure Switch Status
Comp Lo Pres SW Closed, Open
AC Low Pressure Switch Status
Outdr Temp Sens XXXF, FLT (if enabled)
Outdoor Ambient Temperature Display (if installed and enabled in the Thermostat Options Configuration
Menu.
• Perform thermostat/system operation checkout. • Program thermostat or accept factory programming. • Touch Run Schedule...
Installation Guide - Page 6
...are identified the message display will automatically identify the communicating components installed. Messages at Thermostat
During power up to the thermostat. The thermostat will indicate the components found with the message (equipment) FOUND. Note: If the thermostat display continuously shows "SEARCHING", check the wiring to the operating settings. Advanced Installer Confi...
Installation Guide - Page 7
...FAN Auto is displayed. The cooling
system should begin to adjust thermostat setting above room temperature. The heating
system should stop operating. The heating
system should begin to...Cycles Total Defrost Cycles
Fault History (FAULT HIST)
Fault Code
Fault Occurred
Comments
XXXXXXXXXXXXXXX Days XX
Displays up to adjust thermostat setting below room temperature. Days (XX) indicates how ...
Installation Guide - Page 8
...Indications Off, On AC, AC1, AC2, HP, HP1, HP2, Defrost, Time Delay, Off Closed, Open Closed, Open FLT, XXXF FLT, XXXF
Comments Compressor Status System Mode of Operation
Heat Pump High Pressure Switch Status ...Hours of the week. Touch and hold either the or key until you reach the correct day. Thermostat Setup
Set Current Time and Day
On Home Screen Display, touch the Menu key to display the ...
Installation Guide - Page 9
...Thermostat controls only the cooling system. If this program suits your customer's needs, simply touch the Run Schedule key. Advanced Installer Configuration Menu
Air Handler User Menus (Cont.)
Fault History (FAULT HIST)
Fault Code...energy saving settings shown in the Homeowner User Guide.
Em: Thermostat controls emergency heating only. Factory Pre-Programmed heating and cooling ...
Installation Guide - Page 10
... in the next step. Touch Run Schedule at any time to exit the menu and return to display additional key choices. Default is selected, the thermostat will indicate the current humidity on the home screen. It can be reached before the call for 3 seconds. Ideally, the
2
indoor humidity should be set...
Installation Guide - Page 11
..."PROGRAM TYPE". The building temperature is Medium. Allowing 5 minutes per °F rise, the thermostat will be changed to 0 Days to indicate
no programs will follow the
factory program or the .... It can be approximately 60% of 5°. It is only displayed when a conventional 24V thermostat input is 7 Days
2
to indicate individual day programming. In High, the fan will show ...
Installation Guide - Page 12
.../Heat Pump Hours of Operation Second Stage Cooling/Heat Pump Cycles Indoor Blower Hours of Operation
Fault History (FAULT HIST)
Fault Code
Fault Occurred
XXXXXXXXXXXXXXX Days XX
Clear Faults
No, Yes
Comments
Displays up to match your previous thermostat if you prefer. Days (XX) indicates how many days ago the fault occurred
Installation Guide - Page 13
...Open
Main Limit Control Status
MRLC Input
Closed, Open
Main Reset Limit Control Status
HALC Input
Closed, Open
Heat Assist Limit Control Status
IDM Output
Off, Lo, Hi
Inducer Output Status
Furn Lo Pr Sw Closed, Open
Furnace Low Pressure Switch Status
Furn Hi Pr Sw Closed, Open... Cleaner Output Relay Status
Thermostat Setup
Select temperature display as °F
or &#...
Installation Guide - Page 14
...alternates time display between time and outdoor temperature. Advanced Installer Configuration Menu
Thermostat User Menus
Status Parameter
Configuration
Indications
Comments
HP - Dual Fuel
con&#... displayed.
OFF, Heat Pump Available only for air handler with the number of the thermostat based on this setting, the scrolling message area will show "CHANGE UV LAMP" to...
Installation Guide - Page 15
... can be maintained by touching the or keys. When this feature is selected, the thermostat will show the unit model number. The submenus are :
• Status
•...Thermostat User Menu, use or to select the temperature which can be between 5 to display or modify equipment settings
• Dipswitches
Displays current setting of dipswitches on the last six faults by code...
Installation Guide - Page 16
.... Touch or to the left of the temperature setpoint. Change the setting as needed. The thermostat will follow the program that you to another temperature. "WORKING" will appear
and then the ...program periods. Example: If you set for 7 (7 days) in the Thermostat Options Configuration Menu the thermostat can be maintained indefinitely. Press the Run Schedule key. Example...
Installation Guide - Page 17
... it changes to cool but you can touch the SYSTEM key to select AUTO to the Thermostat Options Configuration Menu. To change between Heat and Cool. Advanced Installer Configuration...and runs the fan automatically when the heating or cooling system is touched to select Auto the thermostat will show "WORKING" to indicate that the fan has been programmed to enter that equipment ...
Installation Guide - Page 18
...equipment connected will show "CHANGE FILTER"
Humidifier Pad Maintenance - Using the Thermostat
Maintenance Reminder Message
A reminder will display in the scrolling message area when it can ...of
1
equipment connected. Based on the right of the fault
with an error code in the Thermostat Options Configuration Menu.
The scrolling
message area will show "NO FAULTS"...
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